Fig. 3. DNA methylation analysis of Tnap. Bisulfite sequence
analysis of Tnap was performed on immunomagnetically purified germ
cell and somatic cell fractions from 10.5, 13.5 and 14.5 dpc embryos. Each
line represents an individually sequenced clone. Numbers indicate the
frequency of each observed clone. White circles indicate unmethylated CpG
sites; black circles indicate methylated CpG sites.